The scientists identified blue rings caused by particularly cold summers in 1877 and 1902, which could potentially have been caused by the eruptions of far-off volcanoes Cotopaxi in Ecuador and Mount ...

A Carlisle student is fundraising for an expedition in South America. Ollie Hyslop, a student at Richard Rose Central Academy, will take part in an expedition to Ecuador in July 2025 with Camps ...

and potentially tied to a pair of volcanic eruptions. While the blue rings from 1877 align with a June eruption of Cotopaxi in Ecuador, the blue rings from 1902 align with a May eruption of Mount ...

Esa Hiltula/Daniel Jara/Getty The cooling may be linked to major volcanic eruptions: Mount Pelée on Martinique in 1902 and Cotopaxi in Ecuador in 1877. These eruptions likely cast a volcanic ...

possibly caused by the eruptions of Mount Pelée on the island of Martinique and Cotopaxi in Ecuador. “Blue rings look like unfinished growth rings, and are associated with cold conditions ...

Similarly, Ecuador’s Cotopaxi volcano erupted in late June 1877, potentially contributing to August’s cold temperatures. However, researchers note there’s no other evidence linking this eruption to ...

Some studies have also found links between the cold Norwegian summer of 1877 and the eruption of Cotopaxi in Ecuador. But researchers say “there is no other evidence” to link the volcanic ...

In Norway, scientists have found blue rings in trees that hint at how volcanic eruptions disrupted growth throughout ... eruptions on Mount Pelée on Martinique in 1902 and on Cotopaxi in Ecuador in ...